permanent-magnet motor
Quick Summary
A permanent-magnet motor is a type of electric motor that uses permanent magnets to create its magnetic field, rather than electromagnets. These magnets are typically made from materials like neodymium-boron-iron, samarium-cobalt, or ferrite and are mounted on the rotor.
Permanent-magnet motors are often used in variable-speed drives because they offer precise speed and position control. They are also highly efficient due to the absence of power losses in the rotor, which is common in other motor types like induction motors. These motors can operate at synchronous speeds and are capable of starting, though they may not have a way to control the stator power factor.1
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